About two-thirds of a cell is composed of water. What is the name of the process in which water moves into or out of the cell membrane to maintain homeostasis?
A) regulation
B) endocytosis
C) exocytosis
D) osmosis
D is the correct answer. Osmosis is the process by which water moves into or out of the cell membrane to maintain homeostasis. The membrane must be partially permeable for this to occur. Water moves from a less concentrated solution to a more concentrated solution.
